Agree!
my first solo travel was at 13 to Paris. Popped me on a plane, exchange family picked me up at other end.
at 20, I went to live in Brazil.
my DS, now nearly 21 went off the Serbia with the lads a couple of years ago, I was nervous.
I got him travel insurance, got him an e-sim so at least he had data so could call/navigate if he needed to, and off he went
they had a blast! Went on riverboat trips, museums, ate out in local traditional places, shisha bars too 😂 I was so proud of him.
would I want HIM to go to Brazil or somewhere far from me at his age, hell no, I’d miss him terribly, but would I stop him? No. I couldn’t cos he’d only be doing what I did.
and fwiw, 40 odd years on, I’m still proudly bi-lingual and it’s opened so many doors throughout my life, or at least given me a CB that was memorable so that I’d get an interview